DATASHEET ISL9209B FN6400 Rev 0.00 Charging System Safety Circuit March 21, 2007 The ISL9209B is an integrated circuit (IC) optimized to Features provide a redundant safety protection to a Li-ion battery from Fully Integrated Protection Circuit for Three Protected failures of a charging system. The IC monitors the input Variables voltage, the battery voltage and the charge current. When any of the three parameters exceeds its limit, the IC turns off High Accuracy Protection Thresholds an internal P-Channel MOSFET to remove the power from User Programmable Overcurrent Protection Threshold the charging system. In addition to the above protected Input Overvoltage Protection in Less than 1 s parameters, the IC also monitors its own internal temperature and turns off the P-Channel MOSFET when the High Immunity of False Triggering Under Transients temperature exceeds +140C. Together with the battery Warning Output to Indicate the Occurrence of Faults charger IC and the protection module in a battery pack, the charging system using the ISL9209B has triple-level Enable Input protection and is two-fault tolerant. Easy to Use The IC is designed to turn on the internal PFET slowly to Thermal Enhanced TDFN Package avoid inrush current at power up but will turn off the PFET Pb-Free Plus Anneal Available (RoHS Compliant) quickly when the input is overvoltage in order to remove the power before any damage occurs. The ISL9209B has a logic Applications warning output to indicate the fault and an enable input to allow the system to remove the input power. Cell Phones Digital Still Cameras Ordering Information PDAs and Smart Phones PART NUMBER PART TEMP. PACKAGE PKG. (Note) MARKING RANGE (C) (Pb-Free) DWG. Portable Instruments ISL9209BIRZ* 09BZ -40 to +85 12 Ld 4x3 TDFN L12.4x3A Desktop Chargers *Add -T suffix for tape and reel. Related Literature NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets molding compounds/die attach materials and 100% matte Technical Brief TB363 Guidelines for Handling and tin plate termination finish, which are RoHS compliant and compatible Processing Moisture Sensitive Surface Mount Devices with both SnPb and Pb-free soldering operations. Intersil Pb-free (SMDs) products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. Technical Brief TB379 Thermal Characterization of Packaged Semiconductor Devices Typical Application Circuit Technical Brief TB389 PCB Land Pattern Design and Surface Mount Guidelines for QFN Packages INPUT VIN ISL6292 OUT BATTERY CHARGER C Pinout 1 ISL9209B (12 LD 4x3 TDFN) ISL9209B TOP VIEW VB ILIM R VB EN VIN 1 12 NC R BATTERY ILIM VIN 2 11 OUT GND WRN PACK GND 3 10 OUT EPAD WRN 4 9 ILIM NC 5 8 VB NC 6 7EN FN6400 Rev 0.00 Page 1 of 11 March 21, 2007ISL9209B Absolute Maximum Ratings (Reference to GND) Thermal Information Supply Voltage (VIN) -0.3 to 30V Thermal Resistance (Typical, Notes 2, 3) (C/W) (C/W) JA JC Output and VB Pin (OUT, VB) (Note 1) . -0.3 to 7.0V 4x3 TDFN Package . 41 3.5 Other Pins (ILIM, WRN, EN) . -0.3 to 5.5V Maximum Junction Temperature (Plastic Package) . +150C ESD Rating Maximum Storage Temperature Range -65C to +150C Human Body Model (Per MIL-STD-883 Method 3015.7) .3500V Maximum Lead Temperature (Soldering 10s) +300C Machine Model (Per EIAJ ED-4701 Method C-111) 350V Recommended Operating Conditions Ambient Temperature Range .-40C to +85C Supply Voltage, VIN . 4.3V to 5.5V Operating Current Range . 0A to 1.5A CAUTION: Stresses above those listed in Absolute Maximum Ratings may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. +150C max junction temperature is intended for short periods of time to prevent shortening the lifetime. Operation close to +150C junction may trigger the shutdown of the device even before +150C, since this number is specified as typical. NOTES: 1. The maximum voltage rating for the VB pin under continuous operating conditions is 5.5V. All other pins are allowed to operate continuously at the absolute maximum ratings. 2. is measured in free air with the component mounted on a high effective thermal conductivity test board with direct attach features. See JA Tech Brief TB379. 3. , case temperature location is at the center of the exposed metal pad on the package underside. See Tech Brief TB379. JC Electrical Specifications Typical values are tested at VIN = 5V and +25C Ambient Temperature, maximum and minimum values are guaranteed over the recommended operating conditions, unless otherwise noted. PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNITS POWER-ON RESET Rising VIN Threshold V 2.45 - 3.00 V POR POR Hysteresis - 0.125 - V VIN Bias Current I When enabled 0.75 0.90 1.05 mA VIN VIN Bias Current When disabled 30 60 100 A PROTECTIONS Input Overvoltage Protection (OVP) V 5.65 5.85 6.00 V OVP Input OVP Hysteresis - 0.050 0.100 V Input OVP Falling Threshold 5.55 - - V Input OVP Propagation Delay -- 1 s Overcurrent Protection I V = 3V, R = 25k 0.93 1.00 1.07 A OCP VB ILIM Overcurrent Protection Blanking Time BT - 170 - s OCP Battery Overvoltage Protection Threshold V 4.28 4.34 4.40 V BOVP Battery OVP Threshold Hysteresis -0.03- V Battery OVP Falling Threshold 4.25 - - V Battery OVP Blanking Time BT - 180 - s BOVP VB Pin Leakage Current V = 4.34V - - 20 nA VB Over-Temperature Protection Rising Threshold - 140 - C Over-Temperature Protection Falling Threshold - 90 - C LOGIC EN Input Logic HIGH 1.5 - - V EN Input Logic LOW -- 0.4 V EN Internal Pull Down Resistor 100 200 400 k WRN Output Logic Low Sink 5mA current - 0.35 0.80 V WRN Output Logic High Leakage Current - - 1 A FN6400 Rev 0.00 Page 2 of 11 March 21, 2007